The clock continues to counts down, but the microwave oven does not actually cook. I hear a click as soon as I press start but only the clock ticks down

Jerry, May 2006

This is due to a bad door switch.

Age and opening the door while cooking (without first hitting the STOP pad) is the primary cause of door switch failure.

In my professional opinion, people should not work on a microwave unless they are fully informed and aware of the deadly hazards and necessary precautions.

You can find safety and disassembly text files (as well as a text file which helps in diagnosing and repairing door switch problems) at http://www.microwavedisplay.com

William Miller † MicrowaveDisplay.com, March 2007

Get the manual from sharps web page. The R-209 I use has a demo mode that doesn't actually cook anything. You can never tell which buttons the kids/cat/wife pushed.

George Jetson, July 2006

Sounds like a door interlock switch. Needs a repairperson who would have the parts.

Tina, June 2006